Gamer drugs are supplements designed to make people better at videogames. They claim to do this by heightening things like focus and reaction times, measurables that are key to climbing the ranks of competitive gaming, or e-sports. Of course, it’s unclear if the leading products in this burgeoning drug market are in any way legitimate, so one brave Kotaku reporter sampled two of the drugs for herself during some online rounds of Street Fighter. The results were less than ideal. She lost. She fumbled. She could barely keep her hands still. The reporter, Maddy Myers, described the experience as “humiliating” and that she “was tempted to turn the game off” before her test was over.

Myers tried two drugs: Ambrotose Complex and Stimpack. The former markets itself as a glyconutrient formulation, which sounds legit, but upon closer reading, Myers found that the supplement was essentially an immune system booster, and her test didn’t lead to any notable difference in her Street Fighter performance.

Stimpack, however, brands itself specifically as a gaming supplement. The drug’s website pushes its use of theobromine and caffeine in tandem. The caffeine serves as a stimulant while the theobromine, in theory, is supposed to neutralize jitters and promote focus. Myers, however, experienced tons of restlessness and other twitchy side effects. “I could feel my hands trembling. My breathing also felt shaky and ragged,” she wrote. Myers reported her heart rate spiking as high as 110 beats per minute while she was on Stimpack, and her Street Fighter record plummeted when compared to her sober performance levels.

Performance-enhancing drugs might be making their way into the videogame community, but if Myers’ test is any indication, there’s a long way to go before players find something controlled and refined enough to truly elevate their abilities in competition. Maybe just stick with a cup of coffee and a good night’s sleep the next time you want to wreck some fools in Madden or Battlefield.